FLOODLIGHTING 


INCLUDING 
SEARCHLIGHT & AIRPORT 
LIGHTING 


GENERAL ELECTRIC COMPANY 
SCHENECTADY, N. Y. 


GEA-161-A 
Supersedes GEA-161 





Introduction 


utility and lofty ideals of beauty. Artificial light has become not only a potent 
and necessary tool of industry and commerce, but, as well, an efficient auxiliary 


, \HE modern practice of electric illumination has established new standards of 


of decorative and architectural art. The illuminating engineer, supplementing the rigid 
exactitude of science with a sympathetic appreciation of form and color, is exercising a 
profound influence on almost every activity of life—from the ordinary routine of its work 
to many of its finest delights. 

These aspects of present-day illumination find vivid and distinguished expression 
in the art of floodlighting. Its field of service extends from the freight yard and wharf 
to the splendid creations of the architect’s genius. It expedites, by night, the work of the 
builder and protects the completed structure from marauders who depend on the cover 
of darkness. From an unseen source, it silvers the temples of government, of finance, 
and of commerce, searching out every beauty of line and decoration, suspending them, 
as It were, in exquisite relief against the dark sky, and giving new emphasis to the material 
fabrics and to the public functions which they symbolize. 

Under its beams, monuments to great men and to great causes convey their message 
at night as well as by day; the spectacular aspects of nature—massed foliage or mighty 
waterfall—preserve their charm during the hours when men are free to enjoy them; 
and, with more intimate touch, community playgrounds are made available, when the 
day’s work is done, for the common recreation and the health that comes with open-air 
play. Floodlighting has also made possible the effective illumination of outdoor pageants, 
carnivals, and other spectacles, and has thus given new encouragement to a colorful art 
that is yearly growing in public appreciation. 

Perhaps the most conspicuous triumphs of floodlighting during the last fifteen years 
have been at national and international expositions. Men and women, by hundreds of 
thousands, have carried away as their most vivid impression the glory of color that trans- 
figured pallid buildings and sculpture, and summoned into nightly bloom a vast flower ~ 
of many-hued flame. It is difficult to realize that the art which thus adorned the Panama- 
Pacific Exposition and which adds a flood of color to the flow of Niagara Falls is the same 
that safeguards the making up of a freight train or facilitates the unloading of a barge. 
It is only by contrasting these extremes that one can appreciate the immense scope of 
floodlighting in its many commercial and artistic aspects—that one can understand its 
important place as a constructive aid to the advance of industry and culture. 

The General Electric Company has erected specially equipped laboratories in which 
lighting specialists, engineers and artists devote their skill and experience to new accom- 
plishments in the technique of floodlighting—to new applications and new effects. A few 
of these results are pictured and described on the following pages, and a brief review is 
offered of the principal types of projectors in which profound research has embodied a 
brilliantly creative service. 


[3] 


NOVALUX FLOODLIGHTING PROJECTORS 
FORM L-1 





Fig. 1 Fig. 2 
(Photo No. 265326) (Photo No. 265326) (Photo No. 265326) 
Cat. No. 166012 Cat. No. 189962 Cat. No. 195852 
DESCRIPTION 
The Form L-1 projector consists essentially of a 16-in. 1. Hinged to a flat base. 

highly polished, aluminum parabolic reflector. This is secured 2. On trunnion fastened to swivel base. Wing nuts 
to a cast-iron frame which also supports the lens door. The furnished for adjusting. 
door is fastened in a closed position by means of two hinged 3. On trunnion fastened to pipe stand which is fastened 
bolts and wing nuts. A sponge-rubber gasket between the lens to cast-iron base. Wing nuts furnished for adjusting. 
and door frame renders the unit weatherproof. The cast-iron Two coats of black japan finish are given to all exterior 
socket is adjustable and is held in place by a clamp with wing parts. Best results are obtained with the 500-watt floodlighting 
nut. There are three methods of mounting these projectors: lamp. 


Utrrieyy 
Tetnrnngs 
PTeteenr 
PpEtieer 
CHT! 2 PPPEPeee 
")) PePPOeEee 





Fig. 4 
(Photo No. 442752) 


San Joaquin Power Building, Fresno, Calif. 
Felchlin Company, Architects 


[4] 


NOVALUX FLOODLIGHTING PROJECTORS 


FORM L-3 


‘ 


~~ 





Fig. 5 Fig. 6 Fig. 7 
(Photo No. 265329) (Photo No. 265329) (Photo No. 265329) 
Cat. No. 189668 Cat. No. 195865 Cat. No. 195866 
DESCRIPTION 
The L-3 projector is identical with the L-1 except the This projector gives a wider angle beam than the L-1 but 


reflector. This consists of a number of sectional glass mirrors 4 shorter throw. Best results are obtained with the 500-watt 
set at angles with each other and arranged in three zones. They ; : Ne d 3 
are held together by metal’ strips and the entire reflector is floodlighting lamp. Two coats of black japan finish are applied 
protected by a sheet-steel casing. : to all external parts. 





Fig. 8 
(Photo No. 112502) 


Pan-American Building at Washington, District of Columbia 
Paul Cret, Architect 


[5] 


NOVALUX FLOODLIGHTING PROJECTORS 


FORM L-9 





Fig. 9 ig. 10 Fig. 11 : 
(Photo No. 275678) (Photo No. 265326) (Photo No. 265326) 
Cat. No. 289487 Cat. No. 195863 Cat. No. 195864 
DESCRIPTION 
The Form L-9 projector is identical with the Form L-1 Best results are obtained with the 500-watt floodlighting 


except the reflector, which is constructed of glass and coated 
on the outside with silver. The silvered surface is hermetically 
sealed with a thick copper coating which obviates the necessity 
for an outer casing. With a clear lens, the beam angle of this 
projector is slightly greater than that of the Form 1. parts. 


lamp. 


Two coats of black japan are applied to all external 





‘ See oe : 


NM) AT TTETTTT 





Fig. 12 
(Photo No. 386564) 
Dome of Capitol at Washington, D. C. 


[6] 





NOVALUX FLOODLIGHTING PROJECTORS 








FORM L-11 
ve a te NE ot 
Fig. 13 Fig. 14 
(Photo No. 265338) (Photo No. 265338) 
Cat. No. 197450 Cat. No. 195867 
DESCRIPTION 


This projector is for use with a 250-watt floodlighting 
lamp only. The reflector frame and door construction is similar 
to that of the L-1. The reflector consists of a patented parabolic 
glass reflector, silvered and coppered. The reflector forms the 
casing like the reflector of the Form L-9, and is not enclosed 
in a sheet-metal housing. The projector can be mounted in two 
ways: 


1. On trunnion fastened to swivel base. Wing nuts 
furnished for adjusting. 


2. On trunnion fastened to pipe stand which is fastened 
to cast-iron base. Wing nuts furnished for adjusting. 


Two coats of black japan finish are given to all external 
parts. 





Fig. 15 
(Photo No. 424912) 
United States Playing Card Company Buildings, Cincinnati, Ohio 


NOVALUX FLOODLIGHTING 





PROJECTORS 





FORM L-15 
Fig. 16 Fig. 17 
(Photo No. 277381-1) (Photo No. 277382-1) 
Cat. No. 3049412 Cat. No. 3049411 
DESCRIPTION 


This projector is a universal type and can be adapted 
to all classes of floodlighting. Lamps of 110 or 220 volts and 
from 300 to 1000 watts can be operated. 

It consists of a ventilated and galvanized sheet-metal 
housing within which is mounted a deep composite reflector 
made of silvered and coppered glass. At the top of the casing 
and protected by a hinged ventilating cowl is the universal ball 
and socket focusing mechanism which permits adjustment in 
any direction. The projector can be mounted in two ways: 


1. On trunnion fastened to swivel base. Wing nuts 
furnished for adjusting. 

2. On trunnion fastened to pipe stand which is fastened 
to cast-iron base. Wing nuts furnished for adjusting. 

Best results are obtained with the 1000-watt general 
service lamp. 

Two coats of black japan finish are given to all external 
parts. 





Fig. 18 


‘ (Photo No. 434367) 
Adirondack Power and Light Corporation Station, Amsterdam, N. Y. 
McKim, Mead and White, Architects 


[8] 








NOVALUX FLOODLIGHTING PROJECTORS 


FORM L-20 





Fig. 19 
(Photo No. 270876) 
Cat. No. 257660 


DESCRIPTION 


This projector is similar to the Form L-11 except it may be 
operated with a 200-watt, PS-380 general service lamp or 250- 
watt, G-30 floodlighting lamp. A patented parabolic glass 
reflector, silvered and coppered, is mounted within a sheet-metal 
casing. A sheet-metal door frame is hinged to the casing 
and fastened by a hinged bolt and wing nut. 

The projector is furnished mounted on rocker fastened to 
swivel base. 





Fig. 20 
(Photo No. 436152 
Montclair Memorial, Montclair, N. J. 


Best results are obtained with the 200-watt general 
service lamp. 

If the 200-watt general service lamp is used, remove the 
spacer which is placed between the socket and the inside of the 
socket holder: This change will compensate for the difference 
in light centers between the two lamps. 

Two coats of black japan finish are applied to all external 


parts. 





Fig. 21 
(Photo No. 428620-1) 
American Radiator Company Building, New York City 


NOVALUX FLOODLIGHTING PROJECTORS 


Submersible Fountain Type 
FORM L-23 





Fig. 20 
(Photo No. 277022) 
Cat. No. 3049414 


DESCRIPTION 


This projector is constructed of non-ferrous 
material. The door frame, casing, and trunnion 
bracket are of special aluminum alloy. 

It is equipped with a servicing device which 
consists of a large brass tube that screws into a 
brass base plate; and asmaller tube, assembled to 
the trunnion bracket, which slides inside of the 
larger tube. The smaller tube is slotted and fitted 
with three bayonet joints. These engage a stop 
screw which is assembled into the larger tube and 
projects inside it. The projector may be raised or 
lowered so that it can be lifted above the surface 
of the water in the fountain in order that the front 
door may be removed and the device serviced or 
relamped. 

The front-door glass is gasketed by rubber 
packing, and the door casting is gasketed against 
the casing. 

The projector has a 34-in. pipe-tapped hole mid- 
way of the casing for a 34-in. pipe nipple through 
which the lead cable passes. A wiped joint can be 
made between the brass bushing and the lead cable. 

The device is also provided with two other 
34-in. tapped holes to which a drain pipe, which 
may be a rubber hose or a flexible lead cable, can 
be attached. The reason for the two holes is that 
when the projector is set with the beam in the 


vertical position the bottom hole can be used for 
draining away any condensation which may occur 
inside of the projector. This also permits atmos- 
pheric pressure always to be maintained within 
the projector. If the projector is used with the 
beam horizontal or nearly so, the plug in the top 
hole can be removed and put into the bottom hole 
and the drain pipe can then be put into the hole 
from which the plug was removed. It is very 
advisable when installing these projectors to put 
the drain pipe in because it is desirable that 
atmospheric pressure be maintained. Otherwise the 
heat from the lamp will change the density of the 
air inside the projector, and, when the lamp is 
turned off and the projector cools, there is a 
tendency toward a vacuum or, at least, a lower 
air pressure. This is likely to create a breathing 
effect and may, under some circumstances, cause 
water to enter the projector. 

A sliding screw focusing mechanism is provided 
which allows the lamp to be moved along the 
axis of the reflector either up or down by pulling 
or pushing the bulb. 

The 16-in. glass reflector is silver plated and 
coated with electrolitically deposited copper. 

Either the 500-watt or 1000-watt, 110-volt 
floodlighting lamp may be used. 


[10] 








NOVALUX FLOODLIGHTING PROJECTORS 





FORM 


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DIMENSIONS 


(Dimensions for Reference Only—Not for Construction) 











FIG 
CAT. NO. No. 
A (Max.) 
166012 22 14546 
189962 23 161546 
195852 24 161546 
189668 22 18146 
195865 23 201146 
195866 24 20146 
195863 25 14 


195864 26 14 
289487 22 14546 


197450 27 12 %%6 
195867 28 15A6 


3049412 | 29 15% 

3049411 | 30 15% 
257660 | 31 128A, 

3049414 | 32 40 




















DIMENSIONS IN INCHES 












































Overall 
D E F G H ij K ib: 
B Se (Dia.) (Max.) 
18 21 10% 1434 Nee bee a 
22 2554 14% 143% 18 4 12 2% 41544 
22 5814 4714 143% 18 4 12 2% 41546 
18 il 10% 143% fe Ae se be 
22 2554 14% 14% 18 4 12 2% 81146 
22 5814 4714 143% 18 4 12 2% 81146 
22 25 5% 14% 143% 18 4% 12 2% 
22 5814 47 143% 18 4% 12 2% 
18 21 10144 1434 - ee ee 
174 201% 12 10% 13% 21346 61% 1% 12% 
174 54 45% 10% 13% 21346 12 214 12% 
21% 3034 1734 143% 16% 8146 12 » 21% 
21% 6234 4934 1434 16% 8746 12 ie 53% 
15% 16 9% at 1334 31546 6 14% ee 
1934 32 oN & 























Fig. 22 
(K-1222784) 
Forms L-1, L-3 and L-9 














Sgrad 


S es ei res {dia 
oo 90°Apart 


Fig. 25 
(K-1222784) 
Form L-9 





































































































Fig. 23 
(K-1217994) 
Forms L-1 and L-3 





























A -Sp'rad 


4Holes #'dia 
m, 90°Apart 


Fig. 26 
(K-1222783) 
Form L-9 





-2%4rad. 


pen 3Holes 
Le) 952 dia. 
Oana 





Fig. 27 
(K-1222692) 
Form L-11 


[11] 





(K-1217994) 
Forms L-1 and L-3 























Fig. 28 
(K-1222786) 
Form L-11 





NOVALUX FLOODLIGHTING PROJECTORS 
DIMENSIONS (Cont'd) 


























































AHoles ; 
-IYedia. >. 3Hotes 
90°Apart %> dia. 
4 \20°Apart 
Fig. 29 Fig. 30 Fig. 31 
(K-1238292) (K-1238292) (K-1238292) 
Form L-15 Form L-15 Form L-20 


ee 





je —--------_ 


a 4Holes 9/6 Dia. 
90° Apart 
©. " 
3Y%4 Rad. 


Fig. 32 
(K-3717123) 
Form L-23 


[12] 


NOVALUX FLOODLIGHTING PROJECTORS 
FORMS L-lyiled01-0 elt el-15 10220 SANDAL -23 


For 110- and 220-volt Multiple Circuits 
or with IL Series Multiple Transformer 




























































































(Mazda Lamps WT. IN LB. 
FORM LAMP RATING REFLECTOR BASE reo FRONT-DOOR GLASS eisey |) COS 
NO LIST PRICE Shi Net 
Class H 2D: | 
Lamp Watts Clear 166012 $22.00 
+G-40 500 Hinged 1 Heavily Stippled 2X390 24.20 75 31 
a Deg. Spredlite Seacas 25.00 
hei 16 In. Parabolic Swivel and ict : enon 
L-1 Floodlighting : 2 Heavily Stippled 2X392 26.70 82 38 
Aluminum Trunnion 40 Deg. Spredlite 3049417 27.50 
ear 195852 25.50 
Mogul! Base Swiveland || 3 | Heavily Stippled 2X394 27.70 89 45 
Pp 40 Deg. Spredlite 3049425 28.50 ees ee 
Clear 189668 34.50 
+G-40 500 Hinged 5 Heavily Stippled 2X396 36.70 76 32 
ra Deg. Spredlite peer 37.50 
re 16 In. Wide Angle Swivel and Ser : es 
L-3 Floodlighting . 8 6 Heavily Stippled 2X398 38.70 85 41 
Sectional Glass Trunnion 40 Deg. Spredlite 3049427 39.50 
ear 195866 37.50 
Mogul Base Swiveland .| 7 | Heavily Stippled 2X 400 39.70 118 47 
ee: Pp 40 Deg. Spredlite 3049428 40.50 No ie | CS 
Clear. . 289487 82.00 
TG-40 500 Hinged 9 Heavily Stippled 3049430 34.20 79 34 
a Deg. Spredlite Sabres oo on 
ae 16 In. Medium Angle Swivel and cae Rabset —— 
L-9 Floodlighting 8 10 Heavily Stippled 2X 402 36.20 86 42 
Glass Trunnion 40 Deg. Spredlite 3049432 37.00 
Gaiveltand Clear : 195864 35.00 
Mogul Base Pine Stand ity! Heavily Stippled 2X403 37.20 92 48 
P 40 Deg. Spredlite 3049433 38.00 
A Clear 197450 24.60 
1G-30 250 Swiveland | 13 | Heavily Stippled 2X404 25.30 70 18 
L-11 Floodlightin 10% In. Parabolic 40 Deg. Spredlite 3049434 25.90 
g 
‘ Glass Suivaland Clear : 195867 26.50 
Medium Base Pieeictand 14 Heavily Stippled 3049436 27.30 75 23 
Pp 40 Deg. Spredlite 3049437 27.90 
*PS-52 1000 Lightly Stippled t 3049412 54.00 
*PS-52 750 Swivel and | 16 | Heavily Stippled 2X405 56.20 59 
L-15 *PS-40 500 154% In. Wide Angle et 40 Deg. Spredlite 3049435 57.00 
*PS-35 _ 300 Glass Guiveland Lightly Stippled ¢ 3049411 55.50 
General Service Ping Stand i7f Heavily Stippled 2X406 57.70 67 
Mogul Base De 40 Deg. Spredlite 3049438 68.50 
Rome ; ae 
enera ervice 
F Clear 257660 30.50 
OOM ome tony Nice Gina Swivel and | 19 | Heavily Stippled 2X407 31.30 70 18 
Floodlighting 40 Deg. Spredlite 3049439 31.90 
Medium Base 
G40. 1000 HOLTER ea ten aay 
- } n. Medium Angle wivel an 
123 |} Be niohts ane pretend | 20 |) Clear 3049414 83.00 85 37 
Mogul Base J 











Prices subject to all without notice. 


* General service lamps can be purchased for 110, 115, 120 or 220, 230, 240, and 250 volts. 


+ Floodlighting lamps can be purchased only for 110, 115, and 120 volts. 


t Lightly stippled front-door glass recommended although L-15 projector can be furnished with clear front-door glass if desired, at same ee If L-15 
projector with clear front-door glass is desired specify Cat. No. 224810 instead of Cat. No. 3049412 or Cat. No. 224811 instead of Cat. No. 3049411 
(1) If plain Red, Amber, Blue, or Green front-door glass is required for L-1, L-3, L-9, L-15, or L-23 add $5.30 to List Price of projector with clear lens. 


Stippled colored lens not available. 


(2) If plain Red, Amber, Blue, or Green front-door glass is required for L-11 or L-20 add $3.00 to List Price of projector with clear lens. Stippled 


colored lens not available. 


(3) Mogul sockets furnished on L-1, L-3, and L-9 projectors. If 250-watt lamp is to be used specify when ordering to add Cat. No. GE070 adapter, no 


addition in price. 
(4) For lead plating the L-15 projector add $4.25 to List Price. 


APPLICATION 


Briefly, a floodlighting projector consists of a reflector 
and socket mounted in a weatherproof casing and arranged 
to take a focus-type MAzpA lamp. 

The socket can be moved forward or backward in order 
to focus the lamp; when the proper focus is obtained, the 
socket can be locked in position. All parts are readily accessible, 
and the units are weatherproof and can be mounted either 
outdoors or indoors. 

It is possible economically and effectively to illuminate 
surfaces where lighting by the ordinary method of employing 
several lamps and reflectors is impractical. 

Following are a few of the uses of floodlighting: 


Floodlighting Public Buildings, Monuments, Fountains, etc. 

Every municipality has some notable example of archi- 
tecture, a statue, a square, or historical place in which the com- 
munity has considerable pride. The floodlighting projector 
makes possible the illumination of any such structure and gives 
it prominence by night. 


Floodlighting Billboards and Signs 

G-E floodlighting projectors for billboard lighting can 
be installed in practically any convenient place; obviating 
the use of complicated wiring, increasing the working hours 
of the billboard, and enhancing the advertising value through 
the contrast of the bright surface against the dark background 
of night. 


Floodlighting in Construction Work 
Wherever contractors are called upon to do construction 
work at night they will find G-E floodlighting projectors of 


considerable assistance. Temporary installations can be 
easily and quickly made. 
Floodlighting for Protection 

Important railroad bridges, docks, power stations, 


aqueducts, reservoirs, etc. that are nightly guarded against 
mischief-makers and prowlers are much more completely 
protected when G-E floodlighting projectors are used. 
Floodlighting of Winter Sports 

For lighting winter carnivals, toboggan slides, skating 
ponds, hockey, curling, and skating rinks, the G-E floodlighting 
projector is particularly useful because it provides a powerful 
light and obviates the necessity of poles which often become 
dangerous obstructions. 
Floodlighting for Pageants 

The floodlighting projector is inherently suited to the 
lighting of pageants, carnivals, outdoor expositions, displays 
during merchants’ weeks, etc. 
Floodlighting Athletic Grounds 

Floodlights, mounted on poles adjacent to the grounds 
or on the tops of the stands and buildings of the grounds, have 
made it possible to hold athletic meets and to play football 
and baseball games at night. 


[13] 


NOVALUX FLOODLIGHTING PROJECTORS 
METHOD OF SOLVING FLOODLIGHTING PROBLEMS 














ILLUMINATION DATA 




































































BEAM PHOTO- 
FORM WORKING EEN FRONT-DOOR GLASS A ] rere F METRIC 
HENS Cede 115-voLT EES Candles Lumens pene CURVE 
in Deg. 
Clear 11 168000 2000 4840 0.19 C-61,137 
Lt ke Se Ne Heavily Stippled 60 104000 2460 4620 1.15 C-61,249 
t COCHERUIRE: 40 Deg. Spredlite 
Clear 50 21000 3270 4950 0.93 C-61,148 
Up to 500 Watt : : i 
Les Pee Heavily Stippled 90 6500 4320 4680 2:00 C-61.149 
100 Ft Floodlighting 40 Deg. Spredlite 
Clear 12 310000 3405 6100 0.21 H-130,841 
L-9 pape Boers Heavily Stippled 50 22800 3840 5780 0.93 H-130,842 
. CoS ees, 40 Deg. Spredlite 
Clear 14 52000 990 1800 0.25 C-61,242 
Laan Get ce SU Re te Heavily Stippled 
ogens 8 40 Deg. Spredlite 
Lightly Stippled 37 67500 6900 12640 0.67 H-131,634 
ibeaibe |p Aes ee Heavily Stippled 86 18700 8700 10900 1.87 C-61,221 
‘Suette eneral Service! 49 Deg. Spredlite 
250 Watt Clear 14 52000 990 1800 0.25 Same as C-61,242 
Floodlighting Heavily Stippled 
L-20 85 to or 40 Deg. Spredlite 
200 Ft. | 200 Watt Clear 32 16500 1250 1980 0.57 H-107,613 
General Service Heavily Stippled 65 4900 1320 joo 1.27 H-107,614 
40 Deg. Spredlite 











Beam diameter in feet = Distance from projector in feet X Factor F. 


INTENSITIES FOR FLOODLIGHTING 


CHARACTER OF SURROUNDINGS 
BUILDING SURFACES 


White Resi- 
Way dences Parks 
Dark-colored buildings, i.e., surfaces of red 
brick, clinker brick, brown stone. etc.....| 20 F.C. | 15 F.C. | 10 F.C. 
Medium-colored buildings, i.e., surfaces of 
concrete; granite, setc. nae seine eee 15 BC. | 10 F.C. 5 F.C. 
Light-colored buildings, i.e., surfaces of 
glazed terra cotta, marble, etc...........]| 10 F.C. 5 F.C. 3Ee.G. 


TYPICAL PROBLEM 
Assume a light-colored building, 100 by 80 ft., total 
area 8000 sq. ft. Location, residential section. Units must be 
installed 25 ft. from surface to be illuminated. 
What type of floodlighting unit, foot-candle intensity, 
and number of units are required? 


FORMULA FOR NUMBER OF PROJECTORS 
N =Number of projectors. 
—AXE}A =Area of building facade. 
L_ |) E=Foot-candle intensity required. 
L =Beam lumens delivered by one projector. 


N 


SOLUTION OF PROBLEM 


Factors given: Working distance, 25 ft.; surroundings, 
residential section; surface of building, light. (8000 sq. ft.) 


Refer to the formula for beam diameter in feet given above 
and at a working distance of 25 ft. The L-3 projector is selected 
because its beam covers a large area, being a wide angle pro- 
jector and it proves to be the most economical projector for 
this application. 

The table of intensities shows that a light-colored surface 
in a residential section requires 5 foot-candles. 


Refer to formula 
Ne AXE 


A=8000; E=5; L=3270 


N __ 8000 (sq. ft. area) X 5 (foot-candles) 
3270 (beam lumens—Form L-3) 


N = 12.2, or 12 projectors 


Reasonable allowance should be made for overlapping 
of beams so as to produce an adequate and even illumination 
over the area to be floodlighted. Beam diameter can be 
determined from formula above. 

The illuminating engineering laboratory of the General 
Electric Company will give floodlighting recommendations con- 
cerning objects to be illuminated upon receipt of further data 
as follows: 

Size and color. 

Distance between objects. 
Locations suitable for projectors. 
Nature of lighting in the vicinity. 


















































LAMP DATA 

LIGHT MAXIMUM 
BULB LIFE it STD 

. Center OVERALL 
USED WITH WATTS VOLTS BASE (Clear in SERVICE LIST | PKG 
Glass) Hours ain oe Cte ae PRICE| QTY 
L-1, L-3, L-9 and L-23 Projectors} 500 110, 115, 120 Mogul G-40 800 8150 44 TA6 Floodlighting $3.25 12 
L-11 and L-20 Projectors * 250 110, 115, 120 Medium G-30 800 3375 3 5% Floodlighting| 1.75) 24 
L-15 Projector 300 110, 115, 120 Mogul PS-35 1000 5400 i 9146 General 1.25) 24 
L-15 Projector 500 110, 115, 120 Mogul PS-40 1000 9600 7 91346 General 2.00; 12 
L-15 Projector 750 110, 115, 120 Mogul PS-52 1000 15000 9% 13% General 3.50 8 
L-15 Projector 1000 110, 115, 120 Mogul PS-52 1000 21000 9% 13% General 3.75 8 
L-20 Projector 200 110, 115, 120 Medium PS-30 1000 3200 6 8% General -80| 24 
L-23 Projector 1000 110, 115, 120 Mogul G-40 800 18000 53A6 7% Floodlighting! 6.75| 12 


* This lamp can also be used in the L-1, L-3, and L-9 projectors with an adapter Cat. No. GEO70. 


t Subject to regular incandescent lamp discounts. 
Prices subject to change without notice. 


[14] 








NOVALUX FLOODLIGHTING PROJECTORS 


For Railroad Classification Yards and Other Large Area Lighting 
For 110- and 220-volt Multiple Circuits or with IL Series Multiple Transformer 











LAMP RATING FIG. 
neyo POSITION OF BURNING POURS OD! NO. 
Lamp Watts 
* PS-52 1500 
L-22 c PS-52 1000 With Visor 
— 5S <4 
(Ventilated) PS-52 750 


General Service 


Burn Base Up Without Visor 


Standard Equipment 


Mogul Base 
* PS-52 : : 
* PS_52 ae With Visor 3 


General Service Standard Equipment 


L-24 
(Totally enclosed) Burn Base Up 


Without Visor 


SS ee aS 
S 

















Mogul Base 

Pe) 1000 |} |With Visor 4 
es een yee ine Standard Equipment 
(Totally enclose urn Base Down eS ; 

Mogul Base Without Visor 




















LIST PRICE WT. IN LB. 
AClass H 

FRONT-DOOR GLASS CAT. NO. (Mazpa Lamps ae ee 

not Included) ik i. 
Clear 295396 $134.00 181 81 
Lightly Stippled 295397 134.00 181 81 
Clear 289765 125.00 176 76 
Lightly Stippled 270504 125.00 176 76 
Clear 295398 134.00 175 75 
Lightly Stippled 295399 134.00 175 75 
Clear 3049401 125.00 170 70 
Lightly Stippled 3049395 125.00 170 70 
Clear ; 295400 134.00 175 75 
Lightly Stippled 295401 134.00 gbres) 75 
Clear 3049410 125.90 170 70 
Lightly Stippled 3049409 125.00 170 70 











ARailroads are entitled to the same discount as G-E Distributors. 
* General service lamps can be purchased for 110, 115, 120 or 220, 230, 240, and 250 volts. 


+ Floodlighting lamps can be purchased for 110, 115, and 120 volts. 
Visor only Cat. No. 3706328P1—$9.00 List— AClass H. 


Prices subject to change without notice. 





Fig. 1 
(Photo No. 273867) 


Form L-22 Floodlighting Projector 
with Lightly Stippled Glass Door 





Fig. 2 
(Photo No. 273871) 
Form L-22 Floodlighting Projector 
with Clear Glass Door 
(Showing hinged sections of 
Casing and Reflector) 


APPLICATION 


ADVANTAGES OF RAILROAD YARD LIGHTING 


Over two-thirds of the gross income of our railroads is 
derived from the handling of freight. This movement of freight 
cars is continuous and anything which tends to expedite 
this movement with a decreased breakage and theft loss 
and with less chance of danger to the train operators is of 
the utmost importance not only to the railroads, but also 
to our economic life. Statistics compiled by some of our larger 
railroad systems prove the many advantages of proper lighting 
of the railroad yard. 

The Committee on Illumination of the Association of 
Railroad Electric Engineers in November, 1923, reported 
the following advantages of yard lighting: 


[1 


0 


(1) 
(2) 


Speeding up of cars handled in the yard at night. 

Reduction in cars damaged by rough handling and 
collision in the classification, yard with consequent 
reduction in claims, delay in delivery of goods, 
loss of service of damaged cars, etc. 

Reduction in losses due to pilfering, on account of 
more effective policing possible in a well-illumi- 
nated yard. 

(4) Improved working conditions and increased safety 

for employees working in the yard. 
The importance of these benefits is evidenced by the 
fact that certain railroads have during the past year authorized 
relatively large expenditures for improved yard illumination. 


] 


(3) 


NOVALUX FLOODLIGHTING PROJECTORS 


FORMS L-22, L-24, AND L-25 
APPLICATION (Cont'd) 


GENERAL REQUIREMENTS 


In past years both pendent units and floodlighting pro- 
jectors have been utilized for this service but at the present 
time opinion is almost universal that the most effective results 
are to be obtained by the use of floodlighting projectors. The 
requirements of a projector for service in the railroad yard 
are most severe. Satisfactory results can be obtained only with 
projectors which have been designed and constructed for this 
specific duty. 


Material 


Because of the fact that injurious gases from the 
smoke of the locomotives are ever present in the railroad yard, 
it is most important that the material from which the unit is 
constructed be impervious to attack from these gases. The units 





Fig. 3 
(Photo No. 277378) 


Form L-24 Floodlighting Projector 
With Visor 


are at all times exposed to the weather and should, therefore, 
be weatherproof and of a material which does not rust. 
These two requirements indicate that a cast aluminum alloy 
construction would be most suitable. 


Mechanical Details 


The projectors are as arule mounted on high towers where 
space for the electrician or maintenance man is limited. In 
many cases the platform from which these men must operate 
is at the rear of the unit and in such cases it is most impor- 
tant that they be able to relamp or clean the projector from 
the rear without changing the direction of the beam. The 
best way to provide for this is by the use of a unit which 
has a hinged back door. 


Photometric Results 


The determining factor on the quantity of light in the 
yard is the value of beam lumens from the projector; con- 
sequently careful consideration should be given to the efficiency 
of the unit. Since in many cases the throw is 1000 ft. or more, 
the unit must have a high value of central beam candle power. 
Towers and space in the railroad yard are very expensive 
and anything that can be done to reduce the number of 
projectors necessary to light a given area is a most important 
consideration. With the above-mentioned points in mind, the 
engineers of the General Electric Company have developed 
railroad yard lighting projectors which possess all these 
advantages, as may be observed from an examination of the 
construction specifications listed below. 

Because of their high lighting efficiency these projectors 
are most economical. They are suitable for intensive large- 





Fig. 4 
(Photo No. 277397) 


Form L-25 Floodlighting Projector 
With Visor 


area lighting and are particularly adapted for the lighting 
of railroad yards and the floodlighting of large buildings 
and signs. Standard 110-or 220-volt, 750- to 1000-watt, 
general service (base up) burning lamps can be used in the 
L-22 and L-24 projectors while the 110-volt, 1000-watt 
(base down) burning floodlighting lamp can be used in the 
L-25 projector. The most economical results are obtained with 
the larger lamps. 


RECOMMENDATIONS 
It is not recommended that the L-22 projector be used for 
railroad yard lighting unless it is desired to use the 1500-watt 
lamp. This is essentially a large-area unit. 
The L-24 and L-25 projectors are better adapted for 
railroad yards on account of being dustproof, but must never 
be used with lamps exceeding 1000 watts capacity. 


CONSTRUCTION 


The units have a cone-shaped, two-part casing of alumi- 
num alloy and a hinged front door and a hinged rear 
section for relamping or cleaning, from the back of the pro- 
jector, without disturbing the direction of the beam. The 
focusing mechanism is of the split ball and socket type with 


retarding spring and single clamping screw, allowing movement 
of the socket in any direction. This movement is absolutely 
necessary in order to focus accurately the lamp. The retarding 


spring prevents lamp breakage and further facilitates 
focusing. 


[16] 








NOVALUX FLOODLIGHTING PROJECTORS 
FORMS L-22, L-24, AND L-25 


CONSTRUCTION (Cont'd) 


The L-22 projector is provided with shielded outlets at 
the top and bottom for ventilation and can use the 1500-watt 
lamp. The L-24 and L-25 projectors are totally enclosed. 

The L-22 and L-24 projectors have the lamp socket at the 
top arranged for base-up burning lamps while the L-25 pro- 
jector has the lamp socket at the bottom arranged for base- 
down burning lamp. 

Each projector is provided with two reflectors; the front 
unit, of patented parabolic shape, is attached to the 
stationary part of the projector; the rear unit, of shallow para- 
bolic and spherical sections, is attached to the movable rear 
door. These reflectors are of blown glass, silvered and hermeti- 
cally sealed by a heavy coating of electrolytic copper which 
entirely envelops the outer surface of the mirror. The copper 
coating, in addition to protecting the glass, assists in radiating 
the heat from the lamp. This particular design of composite 
reflector gives a greatly increased value of central beam candle 
power and beam lumens over other comparable projectors. 


The front door is fitted with heat-resisting, pressed glass, 
either clear or lightly stippled. The light stipple in the glass 
tends to smooth out any high spots in the beam. 

The casing and door of the projector are of cast aluminum; 
the ventilating cowl is of copper. All screws and bolts are 
of non-rusting materials. 

The trunnion bracket is band iron, heavily lead plated. 
The swivel and base are cast-iron, heavily lead plated. This 
trunnion bracket and swiveled base allow the adjustment of 
the beam in any direction. 

All joints are made weatherproof by the use of sponge- 
rubber gaskets. 

HOW TO FOCUS 

In focusing, care should be taken to see that the center of 
the lamp filament is in the exact center of the rear reflector. 
It is also important that the filament be brought into the focal 
point along the horizontal axis at right angles to the adjust- 
ment mentioned above. 


ILLUMINATION DATA 



























































Roe WORKING LAMP eee TOTAL Fr PHOTOMETRIC 
DISTANCE 115 voLt FRONT-DOOR GLASS LUMENS CURVE 
Angle Candles Lumens 
{ Upto 1500-watt Clear 22° 336,000 13,100 21,500 0.39 H-131443 
L-22 1500 ft. General Service Lightly Stippled 28° 232,000 12,350 20,900 0.50 H-131444 
oe Up to 1000-watt Clear : 20° 275,000 8,750 15,000 O35 H-130983 
{| 1500 ft. General Service Lightly Stippled 32° 140,000 9,400 14,500 0.57 H-130984 
L-24 Up to 1000-watt Clear : 20° 275,000 8,750 15,000 0.35 H-130983 
3 1500 ft. General Service Lightly Stippled aye 140,000 9,400 14,500 0.57 H-130984 
L-25 J Upto 1000-watt Clear , 14° 550,000 7,000 12,950 0.25 H-131590 
we? | 1500 ft. Floodlighting Lightly Stippled 
Beam diameter in feet = Distance from projector in feet X Factor F. 
LAMP DATA 
LIGHT MAXIMUM 
BULB LIFE CENTER OVERALL LIST STD. 
USED WITH WATTS VOLTS RASE (Clear in LUMENS |S penGcH ul DIMENSTON SERVICE | nie PKG. 
Glass) Hours (In.) (In.) | QTY. 
L-22 Projector 1500 TOR LTS 120 Mogul PS-52 1000 30,000 914 13 General $5.00 8 
L-22 and L-24 Projectors 1000 110, 115; 120 Mogul PS-52 1000 21,000 9% 13 4% General 3.75 8 
L-22 and L-24 Projectors 750 1 KO) sy, aEA79) Mogul PS-52 1000 15,000 9% 13% General ; | 3.50 8 
L-25 Projector 1000 LLOR 5s 120 Mogul G-40 800 18,000 5 71% Floodlighting 6.75 12 
Prices subject to change without notice. 
DIMENSIONS 





























Fig. 5 
(K-1257798) 
Form L-22 Floodlighting Projector 





Fig. 6 
(K-1279441) 
Form L-24 Floodlighting Projector 








Fig. 7 
(K-1279466) 
Form L-25 Floodlighting Projector 








FORM FIG. NO. 








DIMENSIONS IN INCHES 





A B Cc D E G | H K L 
L-22 5 16 26 33 19146 19 6 5% 15 16 20 
L.24 8 22% 25% 324 191546 19 6 5% 15 16 - 
L-25 7 2234 25% 301%6 1916 19 6% 15 16 


NOVALUX INCANDESCENT SEARCHLIGHTS 












































DIMENSIONS 
: 16 Rented re of 
eel Se Vand a4 pene | 7 Elevation San lL Henson oy 
{ Elevation 1293 --+—113-- | pease bart 
ek reese AT l | 
| (it eas | | \ 
| Mi | . 40° 
| Pi ala 4 | 
= | in a Pe ft 38 
Sete ASS cl al 
|] tie | 5 Depression 
} ee Depression t\ e3k 
: alte a7 == A 
| 61g | pprox 
oe 
LG £3 | 
ff 48 
| : ' . ens 4 
| rs I — 4 “ inv) 
| ; | Aoe big 
ao ; '4+-—4 
ge, | \ 1" 
FO ie NS 25 
| 4 
| ry ill 
! | | 32 Dri 
: | Drilling 
| Plan of 
_4_}_i Base ae Bay ee tie & _+_4 Base 
Fig. 6 Fig. 7 Fig. 8 
(T-1256086) : (P-1257762) (P-1256096) 
18-in. Hand-control Incandescent 18-in, Hand-control Incandescent Searchlight 18-in. Pilot-house Control Incandescent 
Searchlight with Swivel and Trunnion Base Searchlight 


\" Elevation 


| —itt ate Ti3— —— 







































8 
an 


rilling Plan 





iNing Pl 
of Base et nee 
Fig. 9 Fig. 10 
(K-1272663) (K-1272540) 
12-in. Hand-control Incandescent Searchlight 12-in. Pilot-house Control Incandescent Searchlight 
Form J-69 Form J-68 





[18] 


NOVALUX INCANDESCENT SEARCHLIGHTS 
ILLUSTRATIONS 





Fig. 1 Fig. 3 
(Photo No. 272477) (Photo No. 275345) (Photo No. 274987) 
Hand-control 18-in. Incandescent Hand-control 18-in. Incandescent Pilot-house Control 18-in. Incandescent 
Searchlight Searchlight Searchlight 
(Pedestal Mounting) (Swivel and Trunnion Mounting) 





Fig. 4 Fig. 5 
(Photo No. 275681) (Photo No. 273397) 
Hand-control 12-in. Incandescent Pilot-house Control 12-in. Incandescent 
Searchlight Searchlight 
Form J-69 Form J-68 


[19] 


NOVALUX INCANDESCENT SEARCHLIGHTS 













































































































































































DESCRIPTION CASTE 
EN See 
od CAT. NO. LIST PRICE Page 3 
Size Control Mirror Ship. Net Fig. No. 
( Hand { Silvered Glass \ 1 248807 $245.00 300 127 } 6 
| oo Metal 248806 160.00 300 125 
F . f Silvered Glass } 248809 270.00 290 122 } 
18-inch Pilot House \ Metal 3 248808 200.00 290 | 120 8 
: Fe | Silvered Glass \ 3049393 235.00 210 102 } 
Swivel and Trunnion; | Metal a 3049392 165.00 210 | 100 ¢ 
Form J-69 Hand Silvered Glass 4 297508 100.00 65 45 9 
12-inch 
Form J-68 Pilot House Silvered Glass 5 290066 100.00 75 50 10 
ACCESSORIES 
Toanctoriner Type M; 60-cycley 110-30-volt;, 1500=watt wee cnreeisiniree eines ote 298237 $22.50 50 35 
art Nisa TypeaM, 60-cyclem110-12-volts1500-wat tmeeneeer ne rererr tet 146139 30.00 55 40 
For operating 600-watt, 30-volt lamp on 40-volt storage 
Datter ys sere eisch eva clase ore ica tela +o MUI ORUS Saige ae ERIS eee Tena ee 290067 . 6.50 
Resistance ‘ 
For operating 600-watt, 30-volt lamp on 110/125-volt, d-c. 
fos byt LACIE bier aOR eG Sa In RiRG rite Dinitin & Oe ao aren Ete 2208687 15.00 
Additional 
Shatin For using 1200-watt, 12-volt Mazpa lamp in 18-in. searchlight. .... 290861 to Ae pee | 
SPECIAL FRONT DOORS 
10 degree : $50.00 
Diverging front-door glass for 18-in. searchlight a ae: se cate licht ia ci 68:00 
40 degree 75.00 
INCANDESCENT LAMPS 
| | = | 
WATTAGE VOLTAGE BASE BULB oie! LIST PRICE WATTAGE VOLTAGE BASE BULB STG. PKD. | LIST PRICE 
; QTY. 
FOR 12-IN. SEARCHLIGHTS 
600 30 Mogul T=20 6 | $6.00 500 110/125 Mogul T-20 | 6 | $6.00 
FOR 18-IN. SEARCHLIGHTS 
1000 110-125 Mogul G-40. | 12 $7.50 || 1000 32-34 Mogul G-40 12 $8.25 
1000 | 110-125 | Mogul T-20 6 6.50 900. 30 Mogu: T-20 6 6.75 
1500 110-125 Mogul G-40 | 12 9.00 71200 32 No. 1838 G-40 12 12.50 
| | | 1] 




















i Requires special socket listed above. 
Prices subject to change without notice. 





NOVALUX INCANDESCENT SEARCHLIGHTS 
APPLICATION 


Novalux incandescent searchlights are designed for pro- 
jecting beams of light upon distant objects by the use of 
high-current incandescent lamps. They are particularly 
applicable to illumination of construction work, spectacular 
displays, or long distance floodlighting, in addition to the 
usual uses on board ship for picking up buoys, and in emer- 
gencies. 

The 18-in. searchlight uses lamps of 900, 1000, 1200, or 
1500 watts where the maximum beam candle power is desired. 
It can also be furnished with diverging doors for spreading 
the beam in one plane to angles of 10, 20, 30, and 40 degrees. 


The 12-in. searchlights were especially designed for use 
on 75-foot power boats, similar to those used by the New York 
Harbor Police and U.S. Coast Guard. The power available 
on these boats is limited to the capacity of the storage battery. 
As no ventilation is provided, the maximum lamp wattage 
recommended is 600. 

Two types of control are furnished, hand and pilot-house. 
The hand-control is used where it is convenient for the operator 
to stand at the searchlight and train the beam. The pilot-house 
control is for operation from inside a pilot house or shelter. The 
swivel and trunnion mounting is used where the searchlight beam 
is fixed in location and does not need to be changed frequently, 


ILLUMINATION 
The following table and charts give the illumination produced by these searchlights with the several lamp and reflector 


combinations. 
































Refer BEAM CANDLEPOWER 18-IN. SEARCHLIGHT 
to WATTAGE VOLTAGE BULB FILAMENT LIFE IN HOURS i Sitveredi 
Pise 1112 an ena es Silvered Glass Mirror| Glass Mirror 
B 900 30 T=20 C-13 50 2,000 ,000 4,200,000 5700 
Cc 1000 32/34 G-40 C-5 100 1,300,000 2,250,000 4450 
1000 110/125 G-40 C=5 100 650,000 1,300,000 
1000 110/125 T-20 C-13A 50 850,000 1,700,000 
A *1200 12 G—40 C-14 100 2,650,000 5,100,000 6800 
D *1500 110/125 G—40 C-13 800 500,000 970,000 6300 
BEAM CANDLE POWER 
12-IN. SEARCHLIGHT 
Silvered Glass Mirror 
G 600 30 T-20 C-13 50 560,000 3050 
H 500 110-125 T-20 C-13 50 400,000 2650 


























* Requires special socket. See Pagel. 



















6 aS as 100 Suaenees snes sesesces' 
Ea 90 
05 
§ + 80 
= © 70 
sa c 
¢ 5 60 
33 3 50 
0 E 
c © 40 
§2 Ss 
E E 30 
31 B 20} 
Soaieeaeees: e 
j3éecGeen se Se 0 
x ee aie 100 500 1000 
Width of Beam Distance Feet 
Fig. 11 


18-in. Searchlight with Silvered-glass Mirror 


























Sas 
I 
| 






























































Beam Diameterin Feet 



























































Beam Candles in 
Hundred Thousands 








0 100 200 300 400 500 
Distance in Feet: 





Fig. 12 
12-in. Searchlight with Silvered-glass Mirror 


INCANDESCENT LAMPS 


The table on Page 16 shows the incandescent lamps which 
may be used with the searchlights. 

For maximum candle power, it is recommended that the 
lamps of lower voltages be used, as in these lamps a higher 

concentration of filament is obtained. However, they have 
@ :isve short life and where replacement cost must be 


considered, as in applications where continuous burning 
is necessary, lamps which have a longer life are 
recommended. 

The 110- to 125-volt lamps may be operated directly 
from standard commercial circuits while transformers or 
resistances are listed for operation of the low-voltage lamps. 


CONSTRUCTION 


18-IN. SEARCHLIGHTS 

The 18-in. searchlights are of cast-iron and sheet-steel 
construction treated with black japan. A ventilating dome is 
located at the top of the drum. The door is of heat-resisting 
glass mounted in a cast-iron frame and attached to the drum 
by swing bolts. Focusing of the lamp with respect to the 
mirror may be accomplished outside of the drum by means 
of a knurled knob at the rear. Handles are provided at the 
rear of the hand-control searchlight, to train the beam in 
azimuth and elevation. The glass reflector is 18-in. in diameter 
and is made to conform with U.S. Navy specifications. The sil- 
vering is protected by electrolytic copper backing. Mechanical 
injury to the mirror is prevented by a sheet-steel dome attached 
to the rear of the drum. 


The pilot house control allows movement of the beam 
to be accomplished by means of a single handle, projecting 
through the pilot-house roof. The beam is elevated or de- 
pressed by a circular rack and pinion. 


12-IN. SEARCHLIGHTS 


The 12-in. searchlights are made for marine service, the 
castings being of a non-corrosive aluminum alloy. The drum 
is a single casting to which the frame for the front-door glass is 
attached by hinges. This glass is heat resisting, being convex to 
provide additional strength. A rubber gasket is placed between 
the door frame and the drum. A universal focusing mechanism 
is provided so that the lamp may be focused in the mirror 
from outside of the drum. 


[21] 


36-IN. HIGH-INTENSITY BEACON 
(CONTINUOUS ROTATION SEARCHLIGHT) 








VOLTS 


DESCRIPTION 
Arc 





36-in. High-intensity Searchlight, Continuous Rotation.......... | 80 








Prices subject to change without notice. 





(Photo No. 432632) 
Fig. 1 











SHIP. WT. NET WT. IN LB. 
: in Lb. (Approx.) 
AMPERES LIST PRICE Cr 
ncluding S he Rh bs 
Line Std. Eqpt. light stat 
110-125 150 $4000 2150 1445 317 








ALTE 
MEET set 
“ll j 
{ J 
> ——, 


f 
ie 
\\t 


\ 














Fig. 2 


DESCRIPTION 


The 36-in. high-intensity continuous rotation searchlights 
were originally designed as aviation beacons for use at 
main fields of the Air Mail Service. They are especially suited 
for spectacular display illumination. When mounted on the 
top of a tall building or tower, they attract much attention 
over a large area, on account of the high-intensity, peculiar 
bluish beam. 


CONSTRUCTION 
The base contains two motors, one for rotating the 
searchlight at 6 r.p.m. and one at 4 r.p.m. The slip rings and 


gears are also in the base, in which five covered openings are 
provided for inspection. A switch is provided for changing 


The searchlight revolves on ball bearings 
on a hollow shaft. The lamp mechanism is fully automatic, 
using thermostat control. The mirror is of best quality 
glass carefully ground and polished, and silvered on the 
back. 

This searchlight operates only on direct current. 


speed of rotation. 


CARBONS Oo et b 
Positive 16 mm. dia. by 36 in. long eit] tana rh 216 


Negative 11 mm. dia. by 12 in. long 
Beam candle power 350,000,000. 


hours. 


[22] 








AVIATION FIELD BOUNDARY LIGHT 


















































LAMP USED (Ag ewer 
DESCRIPTION (Not Included CAT. NO List Price ee 
- in Cat. No. ‘ : 
or Price) Ship. Noe 
Aviation HicldeboundaryalLight,. Clear Globe; oenriessnma oes. sae snicniice nee ee 293473 $12.25 
Aviation Field Boundary Light, Clear Globe Inside Etched, Series.......... 600-1000 Lumen 293474 12.25 
Aviation Field Boundary Light, Ruby Globe, Series.................. 60-100 C.P. 293475 12.25 
Aviation Field Boundary Light, Green Globe, Series...................... 293476 12.25 
Avitaion Field Boundary Light, Clear Globe, Multiple.................... { 293477 12.25 
Avitaion Field Boundary Light, Clear Globe Inside Etched, Multiple....... 40-100 W } 293478 12.25 
Aviation Field Boundary Light, Ruby Globe, Multiple.................... Se att 293479 12.25 
Aviation Field Boundary Light, Green Globe, Multiple..................., 293480 12.25 
All the above complete with base and 4-ft. pipe support. 
Wleats lO DeLOML Vemma paedsks ake CeTuene ape eles Kala re, Fe hha ome testis SoC age ae ay ee ah RRP ae rae enna ces 2363787 $1.00 
GlearaGlobesi nerd erly toned onl yes save cosas Metilae oor orem ds Or crete Rake AEM Ree eet eee ar ce RR es 2346117 1.00 
itd yal DER ON Verena ee Pi gio ae ieetan cccee. racy onedtesiry ahah tebe cedesl 2 i gReRS edie eae ceca te Ml | ee Pe ou Cenc cote, 2346112 1.00 
es eerera (OA eYe) Talal hig) cases occ AaB ca icves paar CREM RE LT precio OrE AIRE oe Peet aap cute: lee TaeuEne ty Sataietoiey mite 2346111 1.00 
GasingrandiSockcet, SeLieS) niu cvegate sore fuss tis. hey > nisi ele eles suareana nis sy aa tenes 600-1000 Lumen 3706239G1 8.50 
GasingrandiSocketsp Multiple. acess sie eer tae sia stetedsteis vate eg saree siete 60-100 C.P. 3706239G2 8.50 
EXpesoupporteloa- ie LLOn_ Pape? 4—ttr LON iene pre mie medn na merer eatin een en | mates epee oe cneerert 2369660 1.00 
SCN Pe Rr tery LO nt A CR OR SSE aS adn tart Salat wee cre at oe | meaeae RO aPSeas ty aie 1340650 1.76 
Prices subject to change without notice. 
DESCRIPTION 


Boundary lights are used to mark the boundaries of 
aviation fields so that oncoming pilots can see a pattern of the 
field. They are spaced approximately 250 feet apart. Where 
any quantity is required, it is advisable to use a constant- 
current system, with No. 8 A.W.G parkway cable. However, 
multiple sockets are listed for use where series circuits are 
not advisable. 

Clear and inside-etched globes are used for boundary 
markers. Ruby globes are used for obstruction markers, 








—--—---—-—- #- ~ 


—_— 


being placed on pole lines and the highest points of build- 
ings which are considered obstructions to taking off or 
landing. Green globes are placed to indicate the most 
favorable approaches to the field. The base is usually 
buried in the ground to a depth of about 18 inches and secured 
with crushed stone or concrete. For the series system, current 
is supplied by a constant-current transformer, either station 


or pole type. 


Lamp not included 


ie— in Cat. No.or price 
| (Cat.2363787-Clear 


| Jeet seat Clear 
Inside Etched 





Cat.2246112- Ruby 
(Cat.2546]ll- Green 


(Cat.370623961 
Series Socket 
Cat.3706239G2 
Multiple Socket 





Cat.2369660 
4 ft.Long 


Approx. Ground 
Level 


GENERAL ELECTRIC COMPANY | 


GENERAL OFFICE: SCHENECTADY, N. Y 
SALES OFFICES (Address nearest Ofiicc) 











eh as CO Sa oD co 159 South Main Street Memphis el ei neeiesiae aeeren ree rorerene eens 130 Madison Avenue 
Remar GI FPS eo Ue Es, ahees DEER a Oe 123 Spring Street INGGKoale, Nelly o5 doWleou 6 aaa 5tis 9 one Southeast Secoad Street 
Baltimore, INT GO Soe awe suctre, choete cites 39 West Lexington Street GU RB MEG Gc cages ono oo7 oe 425 East Water Street 
Birmingham, Ali. peericierc tect 602 North Eighteenth Street Minneapolisa Viti. sase lente . 107 Fifth Street, South 
Bitretiel dawn ids. worata tetera eecketecarccetcte 104 Federal Street Nashville enn. tec eniee sone 234 Third Avenue, North 
Boston, 4Miasss--raes eee npieieie eal cree ene 84 State Street INéwarkGN:, [i desact correo reruns 20 Washington Place 
Buffalo PIN ay chev eaehe eaeee tec eis wie 39 East Genesee Street Newallaven, Conny. sas <2 shee ee 129 Church Strect 
Butte Monticctn ees cooccninateee ohms 40 East Broadway New. Orléans, Was eeeie Se ene ear 837 Gravier Street 
Canton tOlton..< hie eee 700 Tuscarawas Street, West New Yorks Noe Yainecrsisaistetre Sectater ie ieteeete ae 120 Broadway 
Charlestonwaw a Value oa eeyins Gee iert 201 Capitol Street Niagara PallsS-N @YeCr o teito sever enna 201 Falls Street 
CharlottesiNg Cie. ce aoe eee 200 South Tryon Street OklahomanG tty. Ol Vane 15 North Robinson Street 
Chattanooga, Tenn. mers srt acl eis ae 536 Market Street Omaha wNebiert: erties 409 South Seventeenth Street 
Chicapo lll ee eee ret eee reer 230 South Clark Street Philadelphiay Pa. srn-tace cies serait 1321 Walnut Street 
Cincinnati :OUio. eae Meee ee 215 West Third Street Phoentx,Ariz.n cea See oar 11 West Jefferson Strect 
Cleveland Ohio... species Gee ee Oop buekidwAvende PittsburehPal a ee ee 535 Smithfield Strect 
Columbus iOhioz pea ere ee eke ones 17 South High Street Portland: (Orage ee reer en  e e eeree 329 Alder Strect 
Dallaga DL 6x2, smite ee ee ee 1801 North Lamar Street PTOVIGeENCE.w Naw Caria ene eee eee 76 Westminster Strect 
Davenports lowas see 2 eae eee 111 East Third Street Richmoncdai aie eee ee eee 700 East Franklin Strect 
Dayton; "Ohio scene sete eet mier ne eters 25 North Main Street Rochesteriy Nae Y cnteesetse ete arta org bateeameet 89 East Avenue 
Dervers Colocg. hee ee eee 650 Seventeenth Street Sty Louis; Mora. 2. eee 112 North Fourth Street 
Des Moines, Iowa.................418 West Sixth Avenue Salt; Wake City aUita ep seme itcttetset et 200 South Main Street 
Detroit, Mich eee een one 700 Antoinette Street San Antonio, ext), aces masters tren: 601 Navarro Street 
Dulhann eee ees cee 14 West Superior Street Sane rancisco, Caley ane 116 New Montgomery Street 
Elmira s Neey. eee en eee ees 342 East Water Street Schenectady Naa\icae oie een eee 1 River Road 
Bl Pasowexey tens eee 109 North Oregon Street Seattles Washi. tere ce ene eerie 811 First Avenue 
Erie). Pak Sateen te a ae nine ee 10 East Twelfth Street SPOKANE Wials et ett eee tree eee 423 Riverside Avenue 
Fort Wayne ind oie ne a0 eter eee 1635 Broadway Springheld iN lasst terete tee eee: 1387 Main Street 
Grand Rapids Nichns ee eure 201 Monroe Avenue SV TACUSE We Nie Y ecperc seen ene cee ewer 113 South Salina Strect 
Hartford, Connecter: cee eerie 18 Asylum Street (PA COmMa -MW.aS Desc eee deen ern eae 950 Pacific Avenue 
FIGUStOn, Tee eee ane 1016 Walker Avenue ‘Tampaada.tint Se oeetine aoe oc cere 112 Cass Street 
Indiana polisep lirics eae mrenieie alec 106 North Illinois Street Terre Haute, Ind.................... 701 Wabash Avenue 
ackson NELCIosts see teen meee nraree fe 212 Michigan Ave., West Toledo; Ohi 0\ eric, eee eee aes 520 Madiscen Avenue 
Jacksonville witlancm arene coat ee 11 East Forsyth Street MRE 5 Ol syed ou ccm ctaonac ove 409 South Boston Street 
Ka nsasuGity aL Oon aan ee eee ere 1004 Baltimore Avenue Witica:, UNS Yiseks eae ens oe a ee as .239 Genesee Street 
KiioxvilleyebGante een eee ee 602 South Gay Street Washington, D. C.............. 1405 G Street, Northwest 
Little Rock) Ari 2n... 55-255... ..22ouvwest second Street Waterbiry,Contcsc ee) anes eee erent 195 Grand Street 
LostAngeles) Galieveeernmtminrys crores 5201 Santa Fe Avenue Worcester sMidss sects ores cei ee etree 340 Main Street 
Lomsville wkcya nee eee sine os OO OL Bourtmiotreet Na qoolsarsonr gor, OVC 5 peace acdacasacdsue 16 Central Square 


Canada: Canadian Ceneral Electric Company, Ltd., Toronto Hawaii: W. A. Ramsay, Ltd., Honolulu. 
: Motor Dealers and Lamp Agencies in all large citics and towns. 
SERVICE SHOPS 


Atlanta cvers ones Poi s ee hee sishozshare cla vee te eat 91GlennStreets = lospAneelesasmaie eee te eee 5203 Santa Fe Avenue 
Buffalo... 02-2... eee cee e eee eee enn e 318 Urban Street  Minneapolis............2.eeeeeees 410 Third Ave., North 
Chicago... 1... 1... sees e sees ee eee 500 Bast Illinois Streets aN carvark «a eee eee eee 627 Greenwich Strect 
Cees ie bee? a ON Rates| coe eee ee See Piniladel phiacneree stem ieanen heres 1223 Washington Avenue 
DRILAS ste Seftor spare oe secre Nectere 1801 North Lamar Street St. Louis... .......-.-.+.-00. AG FD 0 1009 Spruce Strect 
Detroitt Shi asa at ee eee 700 Antoinette Street Salt Lake City..............370 West Second South Strect 
KansasiGity. qe cee tn oe 819 East Nineteenth Street Seattle ee ee teh ereiac ehebelees 1508 Fourth Ave. South 


Special service divisions are also maintained at the following works of the Company: Bloomfield, N. J.; Erie, Pa.; Ft. 
Wayne, Ind.; Oaliland, Calif.; Pittsfield, Mass.;Schenectady, N.Y.;and West Lynn, Mass.,—River Works and West Lynn Works. 


BROADCASTING STATIONS 
WGY, Schenectady, N. Y. KOA, Denver, Colo. KGO, Oakland, Calif. 


Distributors for the General Electric Company outside of the United States and Canada 
INTERNATIONAL GENERAL ELECTRIC COMPANY, INC. 
New York City, 120 Broadway General Sales Offices, Schenectady, N. Y. 


FOREIGN OFFICES AND ASSOCIATED COMPANIES 


ARGENTINA: General Electric, S. A., Buenos Aires, Cordoba, Rosario de Santa Fé, and Ticuman 
AUSTRALIA: Australian General Electric Company, Ltd., Sydney, Melbourne, Adelaide, Brisbane, and Newcastle 
BELGIUM AND CoLoNniEs: Societe d’Electricite et de Mecanique (Procedes Thomson-Houston & Carc!s) 
Societe Anonyme, Brussels, Belgium 
Brazi_: General Electric, S. A., Rio de Janeiro, and Sao Paulo 
CENTRAL AMERICA: International General Electric Co., Inc., New Orleans, La. 
CuILe: International Machinery Company, Santiago, Antofagasta and Valparaiso; Nitrate Acencies, Ltd., Iquique 
Curna: Andersen, Meyer & Company, Ltd., Shanghai; China General Edison Company, Shanghai 
CotomstiaA: Wesselhoeft & Poor, Bogota, Barranquilla, and Medellin 
Cusa: General Electric Company of Cuba, Havana, and Santiago de Cuba 
DutcH East INpigs: International General Electric Company, Inc., Soerabaia, Java 
Ecuavor: Guayaquil Agencies Co., Guayaquil. 
Ecypt: British Thomson-Houston Company, Ltd., Cairo 
FRANCE AND COLONIES: Compagnie Francaise Thomson-Houston, Paris; International General Electric Co., Inc., Paris € 





GERMANY: International General Electric Co., Inc., Berlin 

GREAT BRITAIN AND IRELAND: International General Electric Co., Inc., British Thomson-Houston Co., Ltd., London, W.C.2; 
British Thomson-Houston Co., Ltd., Rugby 

GREECE AND COLONIES: Compagnie Francaise Thomson-Houston, Paris, France 

HOLLAND: Mijnssen & Co., Amsterdam 

INDIA: International General Electric Company, Inc., Calcutta, Bombay, and Bangalore 

ITALY AND COLONIES: Compagnia Generale Di Elettricita, Milan 

JAPAN: Shibaura Engineering Works, Tokyo; Tokyo Electric Company, Ltd., Kawasaki, Kanagawa-Ken; I=ternatioral 
General Electric Co., Inc., Tokyo, Osaka . 

pee International General Electric Co., Inc., Soerabaia 

ExIco: General Electric, S. A., City of Mexico, Guadalajara, Monterrey, Tampico, Vera Cruz, and El Paco, Texas 

New ZEALAND: National Electrical and Engineering Company, Ltd., Auckland, Dunedin, Christchurch, and Wellington 

PARAGUAY: General Electric, S. A., Buenos Aires, Argentina 

Peru: W.R. Grace & Company, Lima 

PHILIPPINE ISLANDS: Pacific Commercial Company, Manila 

Porto Rico: International General Electric Company, Inc., San Juan 

PORTUGAL AND CoLonigEs: Sociedade Iberica de Construcoes Electricas Lda., Lisbon 

SoutuH Arrica: South African General Electric Company, Ltd., Johannesburg, and Capetown 

SPAIN AND CoLontEs: Sociedad Iberica de Construcciones Electricas, Madrid, Barcelona, and Dilbao 

SWITZERLAND: Trolliet Freres, Geneva 

UruGuay: General Electric, S. A., Montevideo 

VENEZUELA: Wesselhoeft & Poor, Caracas 


July, 1927 (3m) 


a AVRRY CHRARY 
EOLUMSIA UNIVER eres 


